Railway truck wheel and wheel and axle assembly



Jan. 28, 1930. 'w. DALTON 1,745,153

v RAILWAY TRUCK WHEEL AND WHEEL AND AXLE ASSEMBLY Filed March so, 1929 Inventor; 7 William D alt on,

33 MW M His Attorneg According to my invention l atented Jan. 28, 1930 UNITED STATES PATENT orrlcs r e WILLIAM DALTON; OI GLENVILLE, NEW YORK, ASSIG 1\TOR TO GENERAL ELECTRIC COMPANY, A CORPORATION OF NEW YORK,

RAILWAY rnucx' WHEEL AND WHEEL AND AXLE ASSEMBLY Application filed March 30, 1929. serial No..351,343.

The present invention relates to railway truck wheels and to wheel and axle assemblies, particularly wheel and axle assemblies for railway rolling stock. v I provide an assembly of an axle, a dished plate web and a tire secured'together by any suitable process of fusion of metal. By this construction the tire and web may be lightened and made of the material best adapted for its particular use.

This construction possesses advantages over the standard type of railway truck as semblies which comprise an integral wheel of which the tire, web and hub are ofvwrought steel, said wheel being adapted to be keyed to an axle, in that the present assembly may be made cheaper, lighter and of easily re-' placeable parts.

In thedrawing, Fig. 1 is a face view of a wheel and axle assembly in accordance with my invention, and Fig. 2 is a central sectional view of the assembled wheel and a portion of the axle.

'Referring to the drawing, 10 represents a tire, preferably of rolled steel. plate web 11 having inner and outer flanges 12 and 13 is-welded or otherwise secured to the tire 10 and an axle 15 by any desired process of to ion of metal at circumferences 14. The'axle l5 has an enlarged periphery at 16 on which 'the web is adapted to make a shrink fit.

The parts are assembled by first heating the web 11 and pressing it on the axle 15 while hot. When these 'partsare cool the tire 10 is heated and pressed on the web 11.

The connections 14 are then made by metal fusion.

The enlarged portion 16. is provided on axle 15 to, prevent weakening the axle. Welding, for example, weakens the metal at the weld. The enlarged portion is thick enough so that the affected part of the metal does not extend to the axle proper. The larger periphe also provides a greater welding area than t e normal sized axle would afiord.

The dished late web 11 is preferably constructed of s set steel by pressing. TlllS web, when shaped, costs less than one third A dished 1 the amount required for a cast web of the same strength and r uire-s less material."

The flange 12 is much ighter than the cast hub of standard type. The welded connecin use, especially whenbrakes are applied thereto for any'considerable' time. This heat would be sufiicient to expand the tire'enough to pull it away from a flat the welded connection.

The tire is preferably made of rolled steel since such a wheel has very good wear resistmg qualities.

plate and break The tireis subjected to the greatest wear,

the axle a lesser amount, and the web practically none. It is therefore desirable to make the parts replaceable. Inlthe. present construction an assembly having worn parts may be placedin a lathe, the welds cut away and the parts disassembled by pressing operat1OI1S.' New parts may then be assembled wlth the unworn parts as in the original assembling.

What I claim as new and desire to secure by Letters Patent of the United States, is:

1. In a wheel and axle assembly for railway rolling stock the combination of an axle,

a tire, and a connecting dished plate web having inner and outer flanges, said flanges be ing fitted and fastened to the axle and tire.

2. In a wheel and axle. assembly for railway rolling stock the combination of an axle, an enlarged portion on said axle, a tire, and a connecting dished plate web having inner and outer flanges, said, flanges being fitted and welded to the tire and to the enlarged portion on said axle.

3. As an article of manufacture a railway truck wheel comprising a dished plate web having inner and outer flanges, a tire, and

means for fastening said tire to said outer flange.

4. As an article of manufacture a railwa truck wheel comprising a dishedplate we having inner and outer flanges, a. tire, said inner flange forming a hub for the accommodation of an axle, and means for fastening said tire to said outer flange.

In witness whereof, I have hereunto set my hand this 29th day of March, 1929.

WILLIAM DALTON. 

